粗晶组织阶段，强度很低，但塑性和弹性模量有较大程度提高。
The strength of the alloy foils with coarse grain microstructure was low, but the plasticity and elastic modulus were greatly improved.
铝合金反向挤压过程中，不同的挤压工艺条件对粗晶组织将产生不同的影响。
Among aluminium alloy indirect extrusion producing period, various process condition influence different result to the coarse grain structure.
但是，如果温度过高，会因产生再结晶而出现粗晶组织，还会导致性能的严重恶化。
But if the annealing temperature is too high these will appear coarse-grained structure resulting from entire recrystallization.
粗晶组织比细晶组织的裂纹偏折更大，粗糙度诱发闭合效应更强，因而裂纹扩展较幔。
The short cracks deflect more severe in coarse grain structure than in fine grain one, result in roughness induced crack closure effect, therefore exhibit slow crack growth rate.
双向轧制能进一步破碎钽板粗晶铸态组织。
Double-directionally rolling could fragmentate the coarse grain further.
X80管线钢在焊接过程中，热影响区由于受到焊接过程热的作用，其组织和性能会发生较大的变化，尤其是粗晶热影响区的组织和性能变化最大。
Owing to heat action during X80 pipeline steel welding the organization and performance of heat affected zone will change considerably in particular of coarse grain heat affected zone (CGHAZ).
试验钢由针状铁素体和少量块状铁素体组成，焊缝为典型的针状铁素体组织，焊接热影响区粗晶区以粒状贝氏体为主。
The toughness of weld metal is the highest while the coarse grained region in the HAZ is the lowest because of welding thermal cycle and formation of brittle microstructure.
采用光学显微镜和透射电镜研究了锆处理对微合金钢粗晶热影响区组织的影响。
Microstructure of simulated coarse grain heat affected zone (CGHAZ) of Zr Microalloyed HSLA Steel are investigated using optical microscopy and transmission electron microscopy.
通过对粗晶合金性能的检测和金相组织的观察，研究了碳含量对粗晶硬质合金性能的影响。
The effect of carbide content on the properties of coarse grained cemented carbide is studied by means of measuring properties and observing polished cross section.
同时，还从焊接粗晶区组织变化中找出了粗晶区性能变化的原因，并提出了韧化方向。
Meantime it finds out property change reason of coarse crystal area from welding coarse crystal area structure change and puts forward the direction of toughness.
采用焊接热模拟试验和冲击试验，研究了X80管线钢焊接热循环对粗晶区组织性能的影响。
The influence of welding thermal cycle on structure and properties in grain-coarsening region of X80 pipeline steel was investigated by weld thermal simulation technique and the charpy test.
采用焊接热模拟的方法，模拟HAZ粗晶区组织，并在不同回火参数下对试样进行焊后热处理。
By use of the method of welding thermal simulation, the morphology in HAZ was simulated and the post-weld heat treatment under different tempering parameter to the test specimen was carried out.
进一步比较了断裂拉杆和已经产生裂纹的拉杆焊缝区的显微组织，发现在焊缝的热影响区粗晶区存在沿晶裂纹。
The fracture rod has cracks in the microstructure of weld zone, intergranular cracks exists in the coarse grain zone of the weld heat affected zone.
结果表明：在不同的焊接热循环条件下，焊接粗晶区组织主要是板条贝氏体和粒状贝氏体。
The result show that the microstructure formed after thermal cycle was mainly lath bainite and granular bainite in CGHAZ .
双向轧制能进一步破碎钽板粗晶铸态组织。
Double-directionally rolling could fragmentate the coarse gr…
双向轧制能进一步破碎钽板粗晶铸态组织。
Double-directionally rolling could fragmentate the coarse gr…
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